Westmoreland County, Pennsylvania Population 2021

Westmoreland County, Pennsylvania's estimated population is 345,779 with a growth rate of -0.45% in the past year according to the most recent United States census data. Westmoreland County, Pennsylvania is the 12th largest county in Pennsylvania. The 2010 Population was 365,028 and has seen a growth of -5.27% since this time.

Note: 2020 and 2021 data is projected
Year Population Growth Growth Rate
2021345,779-1,560-0.45%
2020347,339-1,560-0.45%
2019348,899-1,560-0.45%
2018350,459-1,547-0.44%
2017352,006-2,659-0.75%
2016354,665-2,258-0.63%
2015356,923-1,943-0.54%
2014358,866-1,797-0.50%
2013360,663-2,124-0.59%
2012362,787-1,649-0.45%
2011364,436-592-0.16%
2010365,028-5,293-1.43%
1990370,321-21,973-5.60%
1980392,29415,3594.07%
1970376,93524,3066.89%
1960352,62939,45012.60%
1950313,1799,7683.22%
1940303,4118,4162.85%
1930294,99521,4277.83%
1920273,56842,26418.27%
1910231,30471,12944.41%
1900160,17547,35641.98%
1890112,81934,78344.57%
188078,03619,31732.90%
187058,7194,9839.27%
186053,7362,0103.89%
185051,7269,02721.14%
184042,6994,29911.20%
183038,4007,86025.74%
182030,5404,14815.72%
181026,3923,66616.13%
180022,7266,70841.88%
179016,0180.00%
2021 Growth Rate
-0.45%
County Website
Founded
February 26, 1773
County Seat
2010 Population
365,028
Growth Since 2010
-5.27%
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Westmoreland County, Pennsylvania Population Growth

Population by Race

Race Population Percentage
White333,73494.65%
Black or African American8,3302.36%
Two or More Races6,1411.74%
Asian3,2570.92%
Some Other Race8820.25%
American Indian and Alaska Native2090.06%
Native Hawaiian and Other Pacific Islander370.01%
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Westmoreland County, Pennsylvania Population by Race

Westmoreland County, Pennsylvania Population Pyramid $2021

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Westmoreland County, Pennsylvania Median Age

47


Total

45.4


Male

48.6


Female

Westmoreland County, Pennsylvania Adults

There are 287,443 adults, (78,061 of whom are seniors) in Westmoreland County, Pennsylvania.

Westmoreland County, Pennsylvania Age Dependency

68.4

Age Dependency Ratio

37.3

Old Age Dependency Ratio

31.1

Child Dependency Ratio

Westmoreland County, Pennsylvania Sex Ratio

Female

180,183

51.10%

Male

172,407

48.90%

Westmoreland County, Pennsylvania Population by Age

Westmoreland County, Pennsylvania Renter vs Owner Occupied by Household Type

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Westmoreland County, Pennsylvania Household Types

Type Owner Renter
Married90.7%9.3%
All77.2%22.8%
Male69.2%30.8%
Female64.7%35.3%
Non Family61.4%38.6%

77.2%

Rate of Home Ownership

Westmoreland County, Pennsylvania Households and Families

Type Count Average Size Owned
All152,2832.2677.2
Married79,1012.8890.7
Non Family53,1231.1661.4
Female13,9652.7764.7
Male6,0942.7469.2

2.8

Average Family Size

2.26

Average Household Size

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Westmoreland County, Pennsylvania Households by Type

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Education Attained Count Percentage
Less Than 9th Grade4,3561.67%
9th to 12th Grade10,2743.95%
High School Graduate96,19536.94%
Some College44,40617.05%
Associates Degree29,40911.29%
Bachelors Degree48,53018.63%
Graduate Degree27,25910.47%
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Westmoreland County, Pennsylvania Educational Attainment by Sex (over 25)

Westmoreland County, Pennsylvania Educational Attainment by Race

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Race Total High School Bachelors
White248,595235,51672,353
Black5,5134,767850
Hispanic2,2601,957581
Asian2,1031,7391,299
2+ Races1,9101,747628
Other Race449417144
Native American18416141
Islander2821

The highest rate of high school graduation is among white people with a rate of 94.74%.

The highest rate of bachelors degrees is among asian people with a rate of 61.77%.

Westmoreland County, Pennsylvania Educational Attainment by Race

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Name Average Male Female
Overall$41,622$51,236$31,682
Less Than 9th Grade$21,486$25,567$15,492
High School Graduate$32,193$42,112$23,650
Some College$37,826$50,271$29,277
Bachelors Degree$53,895$67,724$43,599
Graduate Degree$71,683$88,346$61,755

$41,622

Average Earnings

$51,236

Average Male

$31,682

Average Female

Westmoreland County, Pennsylvania Earnings by Educational Attainment

Westmoreland County, Pennsylvania Language by Age

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Westmoreland County, Pennsylvania Language

97.40% of Westmoreland County, Pennsylvania residents speak only English, while 2.60% speak other languages. The non-English language spoken by the largest group is Other Indo-European, which is spoken by 1.22% of the population.

Westmoreland County, Pennsylvania Language

Westmoreland County, Pennsylvania Poverty by Race

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Name Total In Poverty Poverty Rate
White324,86229,6319.12%
Black7,6782,35730.70%
Multiple5,8401,63928.07%
Hispanic4,03254113.42%
Asian3,18844013.80%
Other85213215.49%
Native1953819.49%
Islander37718.92%

10.01%

Overall Poverty Rate

9.07%

Male Poverty Rate

10.90%

Female Poverty Rate

Poverty in Westmoreland County, Pennsylvania

The race most likely to be in poverty in Westmoreland County, Pennsylvania is Black, with 30.70% below the poverty level.

The race least likely to be in poverty in Westmoreland County, Pennsylvania is White, with 9.12% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 1.48%. Among those working part-time, it was 12.09%, and for those that did not work, the poverty rate was 16.69%.

Westmoreland County, Pennsylvania Poverty

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Name Poverty
Less Than 9th Grade27.74%
High School10.83%
Some College8.12%
Bachelors or Greater3.03%

Westmoreland County, Pennsylvania Poverty Rate by Education

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Rate Poverty
Female Unemployed36.78%
Male Unemployed25.66%
Female Employed5.02%
Male Employed3.56%

Westmoreland County, Pennsylvania Poverty Rate by Employment Status and Sex

Westmoreland County, Pennsylvania Income by Household Type

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Name Median Mean
Households$60,471$78,999
Families$78,323$95,757
Married Families$87,327$106,125
Non Families$31,599$45,078
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Income by Household Type

Westmoreland County, Pennsylvania Marital Status

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Marriage Rates

54.6%

Overall Marriage Rate

56.4%

Male Marriage Rate

52.9%

Female Marriage Rate

Westmoreland County, Pennsylvania Married by Age and Sex

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Westmoreland County, Pennsylvania Marriage

The age group where males are most likely to be married is Over 65, while the female age group most likely to be married is 45-54.

Westmoreland County, Pennsylvania Marital Status by Race

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Westmoreland County, Pennsylvania Marital Status

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26,075

Number of Veterans

24,291

Male Veterans

1,784

Female Veterans

War Veterans
Vietnam9,577
First Gulf War3,985
Second Gulf War3,470
Korea2,461
World War II1,536

Westmoreland County, Pennsylvania Veterans by War

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Age Group Veterans
75+8,180
65 to 747,445
35 to 545,182
55 to 643,627
18 to 341,641

Westmoreland County, Pennsylvania Veterans by Age

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Name Veterans % of Total
White25,1989.17%
Black4006.09%
Hispanic30110.69%
2+ Races29210.69%
Asian943.89%
Native American4323.37%
Other Race397.44%
Islander924.32%

Westmoreland County, Pennsylvania Veterans by Race

Westmoreland County, Pennsylvania Veterans by Education

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6.54%

Veteran Poverty Rate

30.70%

Veteran Disability Rate

Westmoreland County, Pennsylvania Veterans by Education

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60.8%

Labor Force Participation

58.2%

Employment Rate

4.1%

Unemployment Rate

Westmoreland County, Pennsylvania Employment by Age

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Westmoreland County, Pennsylvania Employment by Race

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Westmoreland County, Pennsylvania Employment by Education

Origin of Non-Citizens

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Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

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86.54%

Born in Westmoreland County, Pennsylvania

98.42%

Native Born

1.58%

Foreign Born

0.51%

Non Citizen

1.07%

Naturalized

Place of Birth

98.42% of Westmoreland County, Pennsylvania residents were born in the United States, with 86.54% having been born in Pennsylvania. 0.51% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.

Westmoreland County, Pennsylvania Place of Birth

  1. US Census City/Town Population estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. Population of States and Counties of the United States: 1790 - 1990

Sources